Unaware

Unaware is an Ability that negates all Increased and Decreased Stat changes to the enemy Pokemon, with the exception to Speed, and all Decreased Stat changes to the user of this ability.

For example, if the enemy Pokemon uses Defense Curl to raise its Defense Stat, the Pokemon with Unaware can use a Physical Attack without the damage being affected by the increased Defense Stat. Likewise, the Pokemon with Unaware will not be affected by lowered Stats done by the enemy Pokemon.